The true problem is that back when it was first invented, it wasn't practical. They are still improving it and trying to get it field tested.

Still though, lasers take a fair bit of power, and there is a distinct lack of power in places where mosquitoes are the thickest.

Also people get a bit touchy about "AI controlled lasers" in populated areas, even if the laser is low power.

The fact that they are still trying to improve it despite the lack of a huge economic incentive is a good thing IMHO.